Window sash-balancing means



Dec. 1, 1936.

L. E. APPLEBY WINDW SASH BALANCING MEANS Original Filed Sept. 3, 193,?. 4 sheets-sheet 2 INVENTOR. LanceEA/Dloeby BY Q L4 y v ATTORNEY.

Dec. 1, 1936. L. E. APPLEBY WINDOW SASH BALACING MEANS Original Filed Sept. 3, 1932 4 Sheets-Sheet 3 INVENTOR, 4- Lazze EApp/eby BY 5' Si @E ATTORNEY.

Dec. 1, E APPLEBY 2,062,775

WINDOW SASH BALANCING MEANS Original FiledvSept. 3, A1932 4 Sheets-Shea?l 4 www Si N www* l I N ,y r

"law N @5- INVENTOR. 'Lance E. ppeby ATTORNEY.

Patented Dec. l, 1936 UNITED STATES PATENT oEFieE Lance E. Appleby, Wicliitmlansv.

Application September 3, 1932*, Serial No. 631,616; Renewed October 12, 19,36

2 Claims,

My invention relates to window sash-balancingmeans.

The object of my invention is to provide a spring actuated pendant supporting means'V for l the sash, and means to adjust the tension o f the ill springs for sashes varying in Weight.

A further object oi my invention is to provide a simple and eiiicient means to wind or unwind the springs and accessibility thereto withoutthe removal of any portion of the window frame.

A still further object of my invention is to arrange a head jamb for the Window frame, as supporting means for the sash balance mechanism, the jamb removable, carrying the mechanism cased I A still furtherV object of my invention is to provide a pair of springs'leach of which consists of two coils varying in diameter so that one wil1 engage within the coils of the other and secured together at one end to increase winding and rebound capacity.

A still further object of my invention is to eliminate the conventional weights and pulleys commonly employed; a window frame may be installed practically air-tight, and furthermore the expense reduced by the adoption ofnarrow casings as the studdings adjacent the jambs are placed in close proximity thereto and'to which the saine not being possible with the required space for Weightsbetween the jamb and the studding as commonly employed. v

A These and otherobjects will hereinafter be-l` Fig. 4 is a cross section through a window sill and portion of the Wall. Fig. 5 is a cross section through the headjamb,

exterior and interior trim and lintel.

Fig. Gis a cross section throughthe side Vjamb, n

sash, trim, and portion of the Wall.,

Fig. 7 is a sectional view of an extension jamb. Fig. 8 is `an elevation of an upper corner o fe the frame, fragmentarily shown. 1

' Fig. 9 is a side view of a. fragmentaryportiony of the4 avert .,edjber. Carried' byl theide rail., of..

,55 tpl@ A therewith after the frame has been installed and the outer edge of` the casings may be secured,

(Cl. lis- 193) Fig. 10 is a.` plan view'of: the sash balancingmeans with parts removed' for conveniencejof illustration. Y

Fig. 1l is an inverted 'plan viewof Fig. 10.'Y

Fig. 12 is an end view-off-Fig. 10, outside plateremoved, and-one sheaveksectionallyshown.`\

Fig. 13 is enlarged elevation of the spring winding mechanism, the shaft fragmentarily# shown. Y

Figa. 14 is an.invertedvievir-ofl the windinggear.

Fig. 15 is a planiview of one end of the-wincvvi'ng'l gear housing showing transverselyr` positioned'y slots. Fig. 16 is an elevation of an upper corner oftheflower sash and tape iragmentar-ily shown. l

Fig. 17 is-an exploded view of the sheave andy component parts; l

Figs. 18 and 19 are inside-end views ofl the'drum portions of the sheave.

Fig. 20 is a. plan viewofthe lock lwith a. portion of the housing removed, also j amb'and sashV 20F associated therewith,l the latter/*being in vrcross section. v

Fig. 21 is a sectional view-taken onV line 21e-2|'- in- Fig. 20, looking inthe direction 1 of the arrows.

My invention herein disclosed consists chieiiy 25* in a balancing means forwindowsash and also special features in connection with the window frame consisting of side jambsv-l -andsill"2`, and

ahead jamb 3; the latter removably arranged; and on whichthe-balancing meansiscarried-L 395i and removable therewith. I have-also arranged a housing 4 forthebalance vme'zohanisni,the said housing. is rigidly-attached to the side jambs by nailing lthe same to their respective ends'-of-the` housing-L 355 Furthermore, I have formed-on the, insideo'fy the upperv end portion of each jamb a shoulder 5 onY which the ends of fthe-housingwill seat, as'- shownY in Fig. 8.- The purpose of the housing is topermanently-V connect-fthe ends of fthefjamb and mi to-protect thebalance mechanism from vmortar or other f debris contacting therewith.-

Positioned-jin close proximity tofeach endfroijl the said head1l jamb is a bearing-consisting `of an inside vertically disposed member$7 Bfhaving a`v 4'@ base Ain-tegral therewith, a-ndeatx right anglesthereto as supporting means and attached/tothe f head -jamb by a--screw l as Vshown, byjdotted'lines" inFig. 1 2, and-'an outsidemembeif--B-,j'in paral'f lelism with member li,`- each emember being apere' tured-in registry as shownatv Bjjin- Fig. 5-and-` inT which the outerfends otjgrods;y llfwilljrotatably: en-f gage for thepurpose later described;

'lnesaldnutslid'izlateahare .tongiieiirbent L a drum" intermediately positioned" consisting' of two parts, male and female, telescopically en.-

gaging. The male portion I3 has a flat side as' at C and the female portion I4 has a sloty D, through the side thereof and through which the end of a tape I4 will extend, resting' onfthe flat portion when the said members'are broughtto engagement forming the sheave as shown in Fig. 10 and revolved in opposite direction to dbind the tape when the side of the slot and the terminatingside-of .the at portion are moved in close proximitybinding vthe tape, and `retained in such portion by a notch I5 engaging with a lug I6, by which means further rotation is obviated.

' The said-tapebeing- .vwoundon the portion I4 is the pendant supporting means forits respective sideof the sash, and vbeing connected thereto throughthe medium of a screw I1 threadedly engaging in the sash and passing through- Vthe aperture in the lower end'of a T member I8 as shownin Figs. l2-and 16. The said tape is free to slidably enga'geinaslot I'9in alignment therewith and passing through the ends of the head jambA respectively. f

Securedto the hub II of the inside member ofk thel sheaveis asleeve 20 snugly` fitting thereon and having a flange 2I spaced from the inner; end thereof,; to which the end of coil spring 22 is secured by a short bend as at E insertedv through anaperture Ypassing through the flange as turning. means for the sheave when wound to the proper tension for the weight of the sashpendantly carried by the tapes, there being a similar; sheave `and tape for each side or the sash` In coaction withthe said spring 22 is anotherfspring 23 within the coil of the rst said spring, and through which a rod 9 extends; the

said rodalso.extending` through the membersv of the sheavekwhichfare axially bored to receive the sameI andwfree ,toi revolve therein, as the springs, aretensioned, the4V method ofr which is later-describedr v, l

The end ofthe last said spring adjacent the sleeve element to which the iirst said-spring is attached, is secured to the rod` bythe end portion extending through an aperture diametrically ashshown at F in Fig; 10i. The other end of eachjofthe springs isA securedto' anlannular flange 25 that is rotatable on the rod,.each spring being vattached by a short bend at the end portion extending throughapert'ures respectively in thesaid flange as shown at G and H. The spring elements thus arranged will avoid excess bucklingwhen highly tensioned by lowering the sash, the said springs coacting with each other, the inside Vspring kunwinding against the Wind of the outside spring, eachbeing tensioned in opposite directions to equalize the tension required at the extreme upper position of the sash. It being understood lthat thesaid rod remains stationary after thespringsare properly adjusted Iand to adjust the said springs, there is positioned on the longitudinal center ofthe headjamb a bearing consisting of a channel like structure, the parallel sides of which upwardly extend as Lshown at '26 and 26in Figs. 10. 13 and 15. each'side having its respective half of the apertures functioning as bearings in which hubs 21 of gears 28 are trunnioned; the said hubs are bored axially to engage their respective rod rigidly when passed therethrough as rotating means therefor through the medium of gear 29 that is trunnioned in the base of the channel as shown in Fig. 13, the bearing for said gear 29 arranged by a downward extension 30, throughv which a stem 3I, securedto'the gear, extends as turning means therefor.

The said stem has a slot 32 in the lower end thereof to receive a screw driver when turning the saine. In the lower end of the extension is a disk 33 movable with the gear 29 when forced upward by which means the said gear is retracted to its normal position through the medium of a spring 34 interposed within the extension bearing upon the disk and the base portion of the channel;

Arranged and extending downward from the underside of gear 29 isa pair of lugs 35 oppositely andradially extending as shown in Fig. 1,4, the said lugs adapted to seat in radially positioned slots 36- transversely crossing each other as shownin Fig. l5 by which means when the said gear 29 retracts to its normal position it is lockedy against rotation but is free to turn when forced upward by a screw driver suiiicient to disengage the said lugs from their respective slots 36, the teeth of the gears being in mesh at all times.

It is now clearly shown how the said springs are wound to the required tension balancing the sash. The said bearing previously described has a cap element 31 to snugly engage over the channeled bearing and has in its sides the other half ofthe bearing in registry with those previously described, and means to secure the cap to the bearing lthrough the medium of a screw 38 in each end thereof to threadedly engage in a threaded aperture in an upturned lip 39 as shown inone end of the bearing illustrated in Fig. 10.

In actual practice the spring balancing mechanism is Wound to maintain the weight of the upper sash, making it possible to stop the same at a desired open or closed position, but the lower sash spring balancing means is preferably tensioned sufficiently to raise the same.

Positioned on the adjacent side of the sash to the latch is achannel 53, embedded in the side rail thereof andvsecured thereto against longitudinal movement and having spaced therealong a lplurality of rectangular apertures 54 spaced apart and in which the said latch will engage selectively. It will be understood that the apertured channel may extend the full length of the side rail of the sash, by which means the lower sash maybe raised partially andl locked against further upward movement and to permit further movementsof the'sash the rod 49 is pushed inward releasing the sash. The sash may be checked at a desired position by releasing tension on the push rod. n

It is now clearly shown how a room may be ventilated by partially opening the lowerl sashL and locking the same against further open movement as the said push rod is positioned in close proximity to the check rail of the sash when normally closed.

It is now shown that by the elimination of weight pockets formerly employed or provided for in the installation of window sash the studding of a frame building may be placed in close proximity to the back of the window jamb af- 75 fording means to which a narrow casing may be attached by nailing the same thereto which is economy, and the space between the studding and the jamb may be calked, and as a whole the frame may be installed and cased practically air tight. Provision is also made for the application of stucco as shown at K in Fig. 6 by placing a groove as at L on the inner and outer corner of a brick mould 55 and provision is further made when the structure is veneered with brick in which case the brick. mould must close the space between the brick and the sheathing of the structure, and to move the said brick mould outward carrying the jambs therewith, I have provided an extension jamb member 56 having a tongue 51 thereon to engage in grooves 58 as shown in Figs. 3 to 6 inclusive, by which means the jambs are brought flush with the inside plastered wall on which the casing will engage.

Such other modifications may be employed as lie within the scope of the appended claims, and having fully described my invention what I claim as new and desire to secure by Letters Patent is: 1. In a window sash-balancing means of the class described, a rod, a sheave secured near each end of the rod, a bearing for each sheave, the rod extending therethrough to engage with one side of the bearing, the sheave having a hub on the other side to engage with its respective side of the bearings by which means the said rod is trunnioned, and the sheave free to rotate thereon, each of the sheaves having a tape wound thereon, the free end of each tape being attached to its respective side of a sash, a spring wound on the shaft adjacent each sheave, the endof the spring adjacent the sheave being secured to the shaft, another spring wound about the rst said spring and having one end thereof secured to the hub of the sheave, an annular ange rotatable and slidable on the rod, the flange as connecting means for the other end of each spring, a bearing intermediately positioned to the first said bearings, all of said bearings being secured to the upper side of the head jamb of the window frame, a toothed gear having a hub to engage in said bearing, the hub axially bored to receive the rod as turning means therefor, the points of the gear teeth being in a plane transverse to the axis of the hub and a gear trunnioned in mesh with the rst said gear andadapted to move axially while in mesh therewith and means to turn and lock the last said gear against rotation when the said springs are tensioned sufciently.

2. A window sash-balancing means of the class described comprising a rod having a sheave rotatable on each end thereof and a bearing for each sheave and its adjacent end of the rod, each sheave having a flanged hub on the inner side thereof, a pair of springs one of which is positioned within the other and through which its respective end portions of the rod extends, the end of the inside spring being secured to the rod adjacent the flanged hub and the corresponding end of the outside spring secured to the ange of the hub, an apertured flange looselyvengaging on the rod adjacent the other end of the springs and to which the said flange is secured by which means the said sheaves are rotatably tensioned, a tape wound on each sheave, the free ends thereof secured to their respective sides of a sash as carrying means therefor, a bearing medially positioned with respect to the rod longitudinally and a gear secured to the rod and trunnioned in the bearing, a second gear carried by the said bearing and in mesh with the rst said gear, the last said gear adapted to move toward and from the axis of the rst said gear as turning means therefor when the last said gear is moved inward and turned, means on the last said gear to engage with the bearing to avoid rotation when returned to its normal position, by which means the said springs are wound to a preferred tension and secured as balancing means for the sash, all of said bearings carried on the head jamb of a window frame.

LANCE E. APPLEBY. 

